Well tool



Nov. 18, 1930. HELMECKE 1,781,903

WELL TOOL Filed Aug. 28, 1929 v 2 Sheets-Sheet 1 wucwfo'a v9. fi-fi'efmecie I attozvw/t q Nov. 18, 1930. AKHELMECKE 1,781,903

WELL TOOL Filed Aug. 28, 1929 '2 sheets-sheet 2' Patented Nov. 18 1930 1 11 mm a."HELMnokEQorfBAYf or'rj,

wnttroot' Application filed August 2s,-1929.' SerialNo; 389,031.--

:The present invention-is directed to improvements in well tools; a a 1 .The primary object; of the invention is to provide a device of this character so constru'cted that a. lost tool can;be conven iently removed from the well when the same islost and assumes an inclined positiontherein. g 4 Another objectio'f the'invention isto. provide a device of-thischaracter so constructed that when the device is'lowered into the well the upper end of the losttool will be; lined with the fishing toolflso that it may enter therein to be gripped so that it' can be removed from thewelllfl i Another objected? the invention is to provide adevice .ofthis character which is. simple in construction, efficient in operation, durable, and one which can bemanufactured at a minimumico st;

vide a device- 0f this character which can be easily and quickly, attachedto the fishing'tool to be lowered into thewell. I In the'drawings': g I

Figure l-is a side view-of the-device showing the same inposition for engaging a tool. Figure 2 is a front view of the device. a Figure 3 is asectional view on theiline33 of Figure 2.

V Figure 4is a sectional view on the line 4.4

of Figure 2.

Figure 5 is a perspective view of the barrel. Figure 6 is a similar view of the plates and associated parts.

Jv Figure 7 is a sectional view on the line 7 P l of Figure 2,'with the barrel removed.

Figure 8 is'a fragmentary vertical sectional view through the cylinder.

Referring to theidrawings, the. numeral 1 designates a fishing toolv which may be of spc eial design or of a conventional form, it being essential, however, that the same be provided .with an exteriorly threaded rim 2 for threadl ed engagement in the upper end of the lining up member, designated generally by the numeral 3. This member comprises a cylinder lhaving a slot 5 formedlongitudinally thereof which opens at the lower endof the cylinder and has formed interiorly thereof and;

adjacent its lower end, horizontal ribs 66 edge .15.

Another object. of the invention is to'proarranged iii-pairs and spacedltoproviderelzr tlvelysmall'passages'7." The innermost ribs of each pair are spaced,as at 8, the purpose' f I I of whichwill later appear. A n e p nfe' h cams 9+9 and between said cams the cylinder is cut to provide diametrically opposed seats 10. which open into said slot; v p

SlidabIe in; the cylinder. 4 is'a barrel 11, g

the lower end. of whichis provided with a so depending Shirt 12, said skirt'having formed in its outer face inclined guide grooves 13,

while the inner face thereof is provided with a v-shaped cam l lha vinga beveled lower 1 I The barrel is provided uponopposite sides with recesses 16, thelowerwallsofwhichconstitute stop ribs 17, said ribs having lugs 18 carried thereby. a p A pair or curvedtool engaging'plates 19 are 70 provided :[andfhavefinc'lined extensions 20 'carried thereby flfor 'slidably engaging the guidegrooves 1'3; The p'lates'19are each proareprovidedwith lugs 264" The barrel 11 has bolted'thefeto plate 27 as a which slides in the slot 5fand limits the upward slidinginovement fofthe barrel, the p -'downward sliding 'mo'vement thereof being limited by the'pl'ates "19 upon engaging the I The cylinderiet hassecured'thereto a leaf springs 28 which is adapted to urge the cylinder towardone sidejofthe well hole-so that it I willat all times assumea position to remove a tool which vhas its u per. end or shank end resting against thesideof the well. v .7 v

' When. a drill or other tool is lost or be a comesjdetached from its'connection and as sumes an inclined position,'as shown in Fi'g lure 1 of thefdra-Wi'ngsand assumes suchaJQfl' sile' of the slot 5' are 45 sci iption and it willfbe under position that it cannot be lined up foren'tering the conventional fishingtool, the cylinder 4 is then secured to the fishing tool and the device lowered into the well. WVhen the 5 shank of the tool enters the lower end of the slot 5 and the cylinder is lowered further, the upper -h ClgOif the will engage the, plate downwardly the plate will slide upwardly in V the slot, thus elevatingthebarrelwithimthe cylinder. As the barrel motes upwardly, the V-shaped cam 14 will spread the headsfit, due to the beveled edges '25 engaging the sides of said cam.

awayjfrom each other and carry Wltll thG-lll plates 19, while the'blocks [the seats 10. Antennae, the lugs QGinay pass through the passages 7. I Thejsh'difldn-s 22 of the armswill engage the stop rigs 17 g so thai t as the barrelcontifnues the plates 19 wilLbe lifted; The refu es engage "the camsfiso'that the bipqigs aa w n applzqaeh eh h and p t e l. sha in order Iine the same up so thatjt 'will 3.; pass into the fishing tooljw her e it is gripped and can be lifted; fromj the wen; Obviously, thefplates V1,9' 's'li'detoward each other, the tool shank will be moved and paused to a suine a position axially within'the barrel so 510 that it can then freely enter the fishing tool for .engage nenttliereby. The iitnsioj s 20 serve to evenlyguide the 'platesdiiring their sliding movement. ,7. W I

, r y pror li eth fiShiI gEOQLY hth r a 27mg cylinder can befiiqnyehiently attached thereto and, when hfeffishin ftool lisl'iisd 1o n1e ulr aagp otgaag band can *be o ye iiently threaded pan the rim mfprote'a saineso:thatftlietool'ctinbe us ed'in the 40 uaiar a ner. i r

From the foregoing, it is tho iight'thatj the ope,r .at i on and gnany adyantages' o the'hre- Qin df fsc be d Iii YI n On 'ivg l, e PliMtiW to those skilledin the art f"t1ier,fdeand Wacrious: changes infthe size, shape 'tion and minor details of constructio maybelresorted to withoutldepa-rti ngifiiofiltlieispirit orsacrificing any of the advantages of the in- 59 Ventioin A r Whatis claimed is: i p

1. A toolofthef class descriljedcomprising The heads '24 are then forced v a oylinder for attachment to a well fishing tool, said cylinder having a slot formed therein, a barrel mounted in the cylinder and slidable when encountering a tool in a Well, said tar-rel having a pair'o'f plates"slid'ablyioonnected therein, said plates 'be'ingslidable towa rd each other 7 for ino'vi'ng'the tool -through v IA tool of the class described comprising a "cylinder for attachment to 'a vWell fishing tool, saidcyliiider havin'ga barrel slidable therein-"stop 'r'ibs "ca rrie'df by the barreL-a or plates slidably interlocked-with the fb arrel and having arm'scarried thereby providd with shoulders for engagingthe stop "ribs, saidcyliride'r having seats "formed there- "in, blocks carried by the plates for engagement in the seats, and means carried by the barrel "for sliding the plates toward each "other to disengage 'the bldck's from, the seats. 'when the barrel moves iipwardly 'i'n'='t he cylinder, said plates serving "to "linefa' tool shank or the like with the fishing *tool.

"6. A'tool'ofthe'clas s described comprising I 1.1-:-

eylinder havin afslot'therein, cams upon "opposite sides of the "slot, a barrel-slidable in the cylinder, a airof"p1atess1idab1 connected with the barrel, cooperating means carried by the barrel and plates for sliding the plates toward 'ea choth'er, and 'inea1is"fo1r coupling the -p'l'at'es with the b'arreFto-move thesaineupwardlytherewith for engagement with the cams. L

-'In testiinony wliereof Iafiix my signature. I

ARTHUR A. HELMECKE. a

a cylinder, a barrel 'slidable therein, a-p'air of plates slidably connected with the bariel,cooperatingiiieans carried by the,;barrel"and plates for "sliding :the P plates tpward' each f other duiingjupwaid "sliding'm'oveme nt of the'b'arrel withinTthe'cylinderg 7' h'toolbflthie'cl genteel-ine comprising a cylinder, Maharishi-snare dynaur,

q riedbythebarrelanda'dapteplitd eiiga ge jtlie heads toslide the'plates to wardeach other 

